Conflict, Crisis, and Reaction in the Late 18th Century

Name: AP European History Unit 5: Conflict, Crisis, and Reaction in the Late 18th Century
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10–15% of the exam5 lessons · 70 min33 terms

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What this unit covers

The topics below follow the published Euro History course framework for Unit 5. This unit is worth 10–15% of the exam, so budget your time against that rather than against how long the unit takes to teach.

French RevolutionNapoleonNationalismCongress of Vienna

Lessons in this unit

Every term in Unit 5

All 33 terms we publish for Conflict, Crisis, and Reaction in the Late 18th Century, with definitions. Reading them through is the fastest way to find the ones you cannot define — then drill those in cram mode until you can produce them without the prompt.

Causes of the French Revolution: State bankruptcy from war debt, an inequitable tax structure exempting the privileged orders, bad harvests and bread prices, resentment of privilege, and Enlightenment language for expressing it.
Estates of the realm: Clergy, nobility and everyone else — the Third Estate, roughly 97% of the population, which paid most of the taxes and held one of three votes.
Estates-General: Summoned May 1789 for the first time since 1614 to address the fiscal crisis. The dispute over voting by order or by head immediately became a dispute about sovereignty.
National Assembly and the Tennis Court Oath: June 1789. The Third Estate declared itself the National Assembly and swore not to disperse until France had a constitution. The moment sovereignty was claimed for the nation.
Storming of the Bastille: 14 July 1789. A search for gunpowder became the symbol of popular participation, and showed that the Paris crowd could decide events.
The Great Fear: Summer 1789. Rural panic and attacks on manorial records pushed the Assembly to abolish feudal privileges on 4 August.
Declaration of the Rights of Man and of the Citizen: August 1789. Liberty, property, security and resistance to oppression; equality before the law; sovereignty in the nation. Its silences — women, slaves, the propertyless — became the next generation's agenda.
Olympe de Gouges: Wrote the Declaration of the Rights of Woman (1791), pointing at exactly that silence. Executed during the Terror.
Civil Constitution of the Clergy: 1790. Made clergy salaried elected officials swearing loyalty to the state. It split French Catholics and created the Revolution's most durable internal enemy.
Jacobins and Girondins: Jacobins were centralizing, Paris-based and increasingly radical; Girondins were more provincial and favored a wider war and a looser state. Their conflict decided the Revolution's direction in 1793.
Sans-culottes: Urban working people whose demands were bread, price controls and direct democracy. Their armed pressure repeatedly forced the Convention leftward.
Reign of Terror: 1793–94. The Committee of Public Safety used revolutionary tribunals and mass execution against suspected enemies amid foreign war and civil revolt. Roughly 17,000 official executions and many more deaths.
Robespierre: Dominant figure of the Committee of Public Safety, who defended terror as "virtue" in emergency. Executed in the Thermidorian Reaction of July 1794, which ended the Terror.
Levée en masse: 1793. Mass conscription of the whole population for war. It created the first modern citizen army and made the state's claim on its citizens total.
Thermidorian Reaction and the Directory: The conservative turn after Robespierre's fall, and the unstable five-man executive that followed, 1795–99. Its weakness is the opening Napoleon used.
Napoleon Bonaparte: Seized power in the coup of 1799, made himself Emperor in 1804, and dominated Europe until 1815. He consolidated the Revolution's legal and administrative gains while ending its political liberty.
Napoleonic Code: 1804. Equality before the law, secure property rights, secular civil law — and reduced legal standing for women relative to the revolutionary decade. It spread across Europe and outlasted him everywhere.
Concordat of 1801: Napoleon's settlement with the papacy: Catholicism recognized as the religion of most French people, with the state retaining control of appointments and Church lands unreturned.
Continental System: Napoleon's attempt to defeat Britain by closing European ports to British trade. It damaged European economies more than British ones and provoked the Peninsular War and the Russian campaign.
Invasion of Russia: 1812. The Grande Armée of roughly 600,000 was destroyed by distance, scorched earth and winter. The turning point that made the coalition against him decisive.
Congress of Vienna: 1814–15. Metternich, Castlereagh, Talleyrand and Alexander I redrew Europe on principles of legitimacy, compensation and balance of power. It prevented general European war for a century.
Conservatism after 1815: Reaction against revolutionary principle: legitimate monarchy, established church, hereditary hierarchy, and suspicion of abstract reason. Metternich is its practitioner and Burke its theorist.
Concert of Europe: The post-1815 practice of great powers meeting to manage crises and suppress revolution collectively. The first sustained system of multilateral diplomacy.
Cahiers de doléances: Lists of grievances drawn up across France by all three estates for the Estates-General of 1789. They turned a fiscal meeting into a national inventory of complaints, and they are the historian's best surviving evidence of what ordinary French people actually wanted before the revolution radicalized.
Assembly of Notables (1787): Hand-picked nobles and clergy summoned by Calonne to approve a universal land tax, who refused and demanded the Estates-General instead. It is the moment the fiscal crisis became a constitutional one, and it shows privileged resistance — not popular pressure — forcing the door open.
Parlements and the pre-revolution: Regional law courts staffed by nobles of the robe, which blocked royal tax edicts by refusing to register them while presenting themselves as defenders of liberty against despotism. Their own exemptions were at stake, so their resistance was self-interested and, ironically, produced the assembly that destroyed privilege.
Active vs passive citizens: The 1791 constitution's division of men into active citizens, who paid enough direct tax to vote, and passive citizens, who did not. It is the sharpest evidence of the gap between the Declaration's universal language and the propertied assembly that wrote it.
Assignats: Paper currency issued from 1789 against confiscated Church lands. Over-issue produced severe inflation, which hit urban wage earners hardest and radicalized the sans-culottes — an economic mechanism linking the sale of Church property directly to the politics of the Terror.
Committee of Public Safety: The twelve-member emergency executive that governed France from 1793, directing the war, the economy and the Terror under Robespierre's leading influence. It is the standard case for the argument that revolutionary emergency concentrates power more completely than the regime it replaced.
Vendée rebellion: A large royalist and Catholic peasant revolt in western France from 1793, provoked by conscription and by the Civil Constitution of the Clergy, suppressed with tens of thousands of deaths. It is essential counter-evidence to any claim that the Revolution enjoyed uniform popular support.
Haitian Revolution: The 1791 uprising of the enslaved in Saint-Domingue that produced Haiti's independence in 1804 — the second independent state in the Americas and the first founded by a successful revolt of the enslaved. It is the sharpest available test of French revolutionary universalism.
Toussaint Louverture: Born into slavery, he became the commander of the Haitian revolution and an exceptional strategist, allying in turn with Spain and France as each promised emancipation. Napoleon seized him in 1802 and he died in a French prison in 1803, before independence was won under Dessalines.
Hundred Days and Waterloo (1815): Napoleon's escape from Elba, brief restoration and final defeat by Wellington and Blücher. It hardened the Congress of Vienna's settlement toward containment of France, and it produced the exile to Saint Helena that made the Napoleonic legend a political force for decades.

What examiners penalize here

On DBQ or LEQ prompts about causes, weave **Enlightenment ideology** into the material causes: financial crisis created the opening, but Locke’s and Rousseau’s ideas gave the Third Estate the language of rights and sovereignty to justify overturning the Old Regime.
For legacy questions, argue that Napoleon **institutionalized** the Revolution’s civil gains (the Code, legal equality, merit) across Europe even as he snuffed out its political freedoms — and that his wars **spread nationalism**, the force that would reshape nineteenth-century Europe.
Set up the next century as a struggle between two camps: **conservative order** (Metternich, monarchy, tradition) versus **liberalism and nationalism** (constitutions, rights, national unity). The revolutions of 1830 and 1848 are the recurring flashpoints of that struggle.
Distinguish long-run from immediate causes explicitly; DBQ readers reward it. **Long-run**: privilege, inequitable taxation, Enlightenment critique, a rising and excluded bourgeoisie. **Immediate**: the debt from American intervention, the failure of the 1788 harvest, the collapse of royal credit, and the vote-by-order dispute. Both are needed, and confusing them flattens the argument.
This is the highest-value comparative example in Unit 5. Whenever a prompt asks about the reach or the limits of revolutionary ideals — or about how ideas spread — Haiti lets you argue both sides at once: the language was genuinely portable, and the people who wrote it tried to prevent its portability.

Practice Euro History

Our practice bank is drawn from across the whole course rather than filtered to one unit, which is closer to how the exam asks anyway — it will not tell you which unit a question is testing.

84 practice questionsEvery one with a written explanation FRQ trainerWritten answers scored against the rubric Euro History study guideAll units, weights and score data in one place All 9 Euro History unitsThe full course

Questions about this unit

How much of the AP European History exam is Unit 5?

Unit 5, Conflict, Crisis, and Reaction in the Late 18th Century, is worth 10–15% of the Euro History multiple-choice section according to the published course framework. Across all 9 units that makes it a substantial share — heavier than an even split would give it.

What topics are covered in Euro History Unit 5?

Conflict, Crisis, and Reaction in the Late 18th Century covers French Revolution, Napoleon, Nationalism and Congress of Vienna. We publish 33 terms with definitions for this unit, all of them on this page.

How should I study Euro History Unit 5?

Read the 5 lessons below first — about 70 minutes — then drill the 33 terms in cram mode until you can produce each definition from memory rather than just recognize it. Recognition is what makes a unit feel finished when it is not. Finish with practice questions and read the explanation for every one you get right by elimination as well as the ones you miss.

All 9 units of AP European History

Unit names, topics and exam weights follow the published College Board course framework for AP European History. AP® is a trademark registered by the College Board, which does not endorse this site.